(fix) Patient deceased widget should not break when patient is undefined

[Jexsie]

Requirements

• This PR has a title that briefly describes the work done including the ticket number. If there is a ticket, make sure your PR title includes a conventional commit label. See existing PR titles for inspiration.
• My work conforms to the OpenMRS 3.0 Styleguide and design documentation.
• My work includes tests or is validated by existing tests.

Summary

• Fixes breaking (fix) Remove useOmrsRestPatient hook #1148

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[ibacher]

This is a fix. "BREAKING" is reserved for where we are making code changes that change the API so that previous code no longer works. Everything else is either a (feat) if it adds new functionality without breaking existing functionality or, like this, a (fix) if it fixes a bug. Bugs are (maybe) breaking for the product, but the commit for them isn't.

[ibacher]

Also, the title of the PR should reflect what the PR does (e.g., "deceased tag should render even if patient is undefined") rather than what code it effects. If you want to note that it fixes a regression introduced in a commit, add that as the second line of the commit message or just in the description of the ticket.